What size nut goes onto a typical US passenger tire Schrader valve?

What size nut goes onto a typical US passenger tire Schrader valve?

To insert the tire valve, I know there is a ridiculously cheap cross-type
valve tool where you thread it on the outside of the tire valve to pull the
tire valve through the hole in the wheel rim, but for emergency use I just
want to stock a few nuts that I can thread on the outside of a new valve to
use as a ledge to pull the tire valve through the hole as shown he
https://d3vl3jxeh4ou3u.cloudfront.ne...e%20pliers.jpg

Looking for what nuts to purchase, the Wikipedia for Schrader valves says
the typical passenger brass & rubber tubeless tire pop-in Schrader valve
has OD threads of:

*TR 418, 0.453 in (11.5 mm) rim hole diam. 2 in (51 mm) long*[*] Metric: 7.7 mm OD, thread root diameter is 6.9 mm ? 0.794 mm pitch[*] Imperial: 0.305 in OD, thread root diameter 0.271 in ? 32 tpi (threads
per inch; thread density)

Assuming "Imperial" means "USA", that would mean I need a 32 TPI nut
somewhere between 0.271 inches and 0.305 inches in iD, but that doesn't
seem to be a standard size for a USA nut.
http://www.engineeringtoolbox.com/in...nts-d_471.html

Even if I look deeper into the granularity, it still seems an odd size:
http://www.liming.org/InMoov/pics/decimalchart.jpg

So I simply ask you if you have experence with this problem.

What size nut goes onto a typical US passenger tire Schrader valve?

On 12/6/2016 10:07 AM, Leon Schneider wrote:
> What size nut goes onto a typical US passenger tire Schrader valve?
>
> To insert the tire valve, I know there is a ridiculously cheap cross-type
> valve tool where you thread it on the outside of the tire valve to pull the
> tire valve through the hole in the wheel rim, but for emergency use I just
> want to stock a few nuts that I can thread on the outside of a new valve to
> use as a ledge to pull the tire valve through the hole as shown he
> https://d3vl3jxeh4ou3u.cloudfront.ne...e%20pliers.jpg
>
> Looking for what nuts to purchase, the Wikipedia for Schrader valves says
> the typical passenger brass & rubber tubeless tire pop-in Schrader valve
> has OD threads of:
>
> *TR 418, 0.453 in (11.5 mm) rim hole diam. 2 in (51 mm) long*
>[*] Metric: 7.7 mm OD, thread root diameter is 6.9 mm ? 0.794 mm pitch
>[*] Imperial: 0.305 in OD, thread root diameter 0.271 in ? 32 tpi (threads
> per inch; thread density)
>
> Assuming "Imperial" means "USA", that would mean I need a 32 TPI nut
> somewhere between 0.271 inches and 0.305 inches in iD, but that doesn't
> seem to be a standard size for a USA nut.
> http://www.engineeringtoolbox.com/in...nts-d_471.html
>
> Even if I look deeper into the granularity, it still seems an odd size:
> http://www.liming.org/InMoov/pics/decimalchart.jpg
>
> So I simply ask you if you have experence with this problem.
>
> What size nut goes onto a typical US passenger tire Schrader valve?
>
Can't you use a metal valve cap?
You need a cap anyway, so it's always there in an emergency.

On Tue, 6 Dec 2016 18:07:37 -0000 (UTC), Leon Schneider
> wrote:

>What size nut goes onto a typical US passenger tire Schrader valve?
>
>To insert the tire valve, I know there is a ridiculously cheap cross-type
>valve tool where you thread it on the outside of the tire valve to pull the
>tire valve through the hole in the wheel rim, but for emergency use I just
>want to stock a few nuts that I can thread on the outside of a new valve to
>use as a ledge to pull the tire valve through the hole as shown he
>https://d3vl3jxeh4ou3u.cloudfront.ne...e%20pliers.jpg
>
>Looking for what nuts to purchase, the Wikipedia for Schrader valves says
>the typical passenger brass & rubber tubeless tire pop-in Schrader valve
>has OD threads of:
>
>*TR 418, 0.453 in (11.5 mm) rim hole diam. 2 in (51 mm) long*
>[*] Metric: 7.7 mm OD, thread root diameter is 6.9 mm ? 0.794 mm pitch
>[*] Imperial: 0.305 in OD, thread root diameter 0.271 in ? 32 tpi (threads
>per inch; thread density)
>
>Assuming "Imperial" means "USA", that would mean I need a 32 TPI nut
>somewhere between 0.271 inches and 0.305 inches in iD, but that doesn't
>seem to be a standard size for a USA nut.
>http://www.engineeringtoolbox.com/in...nts-d_471.html
>
>Even if I look deeper into the granularity, it still seems an odd size:
>http://www.liming.org/InMoov/pics/decimalchart.jpg
>
>So I simply ask you if you have experence with this problem.
>
>What size nut goes onto a typical US passenger tire Schrader valve?

Can't you just use a stem puller tool; instead of the core tool or a
nut. Much easier.

<https://www.amazon.com/Milton-S-449-Valve-Insertion-Tool/dp/B000K1PKFY/ref=sr_1_3/151-3094190-8516300?s=automotive&ie=UTF8&qid=1481049631&sr=1-3&keywords=valve+stem+puller#productDetails>

or <https://tinyurl.com/hve25mc>

Sorry about not answering the thread size.

In article >,
says...
>
> What size nut goes onto a typical US passenger tire Schrader valve?
>
> To insert the tire valve, I know there is a ridiculously cheap cross-type
> valve tool where you thread it on the outside of the tire valve to pull the
> tire valve through the hole in the wheel rim, but for emergency use I just
> want to stock a few nuts that I can thread on the outside of a new valve to
> use as a ledge to pull the tire valve through the hole as shown he
> https://d3vl3jxeh4ou3u.cloudfront.ne...e%20pliers.jpg
>
> Looking for what nuts to purchase, the Wikipedia for Schrader valves says
> the typical passenger brass & rubber tubeless tire pop-in Schrader valve
> has OD threads of:
>
> *TR 418, 0.453 in (11.5 mm) rim hole diam. 2 in (51 mm) long*
>[*] Metric: 7.7 mm OD, thread root diameter is 6.9 mm ? 0.794 mm pitch
>[*] Imperial: 0.305 in OD, thread root diameter 0.271 in ? 32 tpi (threads
> per inch; thread density)
>
> Assuming "Imperial" means "USA", that would mean I need a 32 TPI nut
> somewhere between 0.271 inches and 0.305 inches in iD, but that doesn't
> seem to be a standard size for a USA nut.
> http://www.engineeringtoolbox.com/in...nts-d_471.html
>
> Even if I look deeper into the granularity, it still seems an odd size:
> http://www.liming.org/InMoov/pics/decimalchart.jpg
>
> So I simply ask you if you have experence with this problem.
>
> What size nut goes onto a typical US passenger tire Schrader valve?


There is no 'standard' nut to be found that will fit the tire valve.

The valve has been the same odd ball value for all tires US and others
from about the time of the first tires.

Standard automotive (car) Schrader valve dimension is

7.7 mm OD

32 tpi, or 0.794 mm pitch

Minor diameter is 6.9

Thread designation is .305-32 or 7.7-32

Nice mix of inches and millimetres!

If you want a nut, you are probably going to have to make your own or
have it made for you.

Leon Schneider posted for all of us...


>
> What size nut goes onto a typical US passenger tire Schrader valve?
>
> To insert the tire valve, I know there is a ridiculously cheap cross-type
> valve tool where you thread it on the outside of the tire valve to pull the
> tire valve through the hole in the wheel rim, but for emergency use I just
> want to stock a few nuts that I can thread on the outside of a new valve to
> use as a ledge to pull the tire valve through the hole as shown he
> https://d3vl3jxeh4ou3u.cloudfront.ne...e%20pliers.jpg
>

You aren't going to able to do with out the tool. You may have a TPMS stem.

If you insist, I would get some extended metal valve caps and have at them
as you wish.

Remember the valve cap has a very large job of keeping the air in the tire
as schrader valves are dodgy.

--
Tekkie

Leon Schneider wrote:

>What size nut goes onto a typical US passenger tire Schrader valve?

It doesn't exist commercially but if you really want to go that way
Schrader thread taps are available (try ebay) so you could drill an
existing nut to the tapping diameter and make your own.

--
John H

In article >, john4271
@hotmail.com says...
>
> Leon Schneider wrote:
>
> >What size nut goes onto a typical US passenger tire Schrader valve?
>
> It doesn't exist commercially but if you really want to go that way
> Schrader thread taps are available (try ebay) so you could drill an
> existing nut to the tapping diameter and make your own.

4-way valve stem tools cost less than $2. It amazes me why some people
want to reinvent some things.

https://www.google.com/search?q=Slim...alve+Tool&rlz=
1C1GGGE_enUS434US449&oq=Slime+20088+4-Way+Valve+Tool&aqs=chrome..69i57
&sourceid=chrome&ie=UTF-8

--
RonNNN

Leon Schneider > wrote:
>What size nut goes onto a typical US passenger tire Schrader valve?

>Looking for what nuts to purchase, the Wikipedia for Schrader valves says
>the typical passenger brass & rubber tubeless tire pop-in Schrader valve
>has OD threads of:
>
>*TR 418, 0.453 in (11.5 mm) rim hole diam. 2 in (51 mm) long*
>[*] Metric: 7.7 mm OD, thread root diameter is 6.9 mm ? 0.794 mm pitch
>[*] Imperial: 0.305 in OD, thread root diameter 0.271 in ? 32 tpi (threads
>per inch; thread density)

That sounds about right. Get yourself some brass stock, take ten minutes
to cut one on a good lathe.

>Assuming "Imperial" means "USA", that would mean I need a 32 TPI nut
>somewhere between 0.271 inches and 0.305 inches in iD, but that doesn't
>seem to be a standard size for a USA nut.

Sure isn't, that's deliberate.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

On Tue, 6 Dec 2016 18:07:37 -0000 (UTC), Leon Schneider
> wrote:

>What size nut goes onto a typical US passenger tire Schrader valve?
>
>To insert the tire valve, I know there is a ridiculously cheap cross-type
>valve tool where you thread it on the outside of the tire valve to pull the
>tire valve through the hole in the wheel rim, but for emergency use I just
>want to stock a few nuts that I can thread on the outside of a new valve to
>use as a ledge to pull the tire valve through the hole as shown he
>https://d3vl3jxeh4ou3u.cloudfront.ne...e%20pliers.jpg
>
>Looking for what nuts to purchase, the Wikipedia for Schrader valves says
>the typical passenger brass & rubber tubeless tire pop-in Schrader valve
>has OD threads of:
>
>*TR 418, 0.453 in (11.5 mm) rim hole diam. 2 in (51 mm) long*
>[*] Metric: 7.7 mm OD, thread root diameter is 6.9 mm ? 0.794 mm pitch
>[*] Imperial: 0.305 in OD, thread root diameter 0.271 in ? 32 tpi (threads
>per inch; thread density)
>
>Assuming "Imperial" means "USA", that would mean I need a 32 TPI nut
>somewhere between 0.271 inches and 0.305 inches in iD, but that doesn't
>seem to be a standard size for a USA nut.
>http://www.engineeringtoolbox.com/in...nts-d_471.html
>
>Even if I look deeper into the granularity, it still seems an odd size:
>http://www.liming.org/InMoov/pics/decimalchart.jpg
>
>So I simply ask you if you have experence with this problem.
>
>What size nut goes onto a typical US passenger tire Schrader valve?
just use a metal valvecap and a washer.. The actual thread is a
..305X32 - which is NOT a standard fastener thread.

RonNNN wrote on Tue, 6 Dec 2016 15:39:37 -0600:

> 4-way valve stem tools cost less than $2. It amazes me why some people
> want to reinvent some things.

Assuming the tire is off the rim, can I both remove an old valve and
replace it with a new valve using that cheap 4-way tool?